[one-users] Opennebula and Xen 4.1.0

Wed May 4 03:41:38 PDT 2011

Hi,

Yes that's much better thanks ;)

Cheers

Ruben

On Wed, May 4, 2011 at 12:09 PM, Prakhar Srivastava
<prakhar.apj at gmail.com>wrote:

> Hi,
> I was facing a similar issue. It seems that Xen 4.1 doesnt understand
> sched-cred but it does understand* sched-credit*. To resolve the issue, I
> changed sched-cred to sched-credit in *xenrc* file located at
> /var/tmp/one/vmm/xen/xenrc on the cluster host where xen 4.1 is installed.
>
> Below is the line to change:
> export XM_CREDITS="sudo $XM_PATH sched-cred"
> to
> *export XM_CREDITS="sudo $XM_PATH sched-credit"*
>
> Everything worked fine thereafter. Hope this helps.
>
> Prakhar
>
>
> On Wed, May 4, 2011 at 2:28 PM, Ruben S. Montero <rubensm at dacya.ucm.es>wrote:
>
>> Hi,
>>
>> It seems that it is complaining about not having sched-cred, that it is
>> used to implement the capacity distribution set in OpenNebula (a VM with
>> CPU=0.5, will be assigned a proportional amount of credits so it gets half
>> of the credits of a VM with CPU=1.0)
>>
>> Just edit $ONE_LOCATION/var/lib/remotes/vmm/xen/deploy.sh and comment the
>> line that refers to sched-cred. Use onehost sync (and wait for a monitoring
>> action on the hosts....)
>>
>>
>> Cheers
>>
>> Ruben
>>
>>
>> On Mon, May 2, 2011 at 5:33 PM, Todd Deshane <todd.deshane at xen.org>wrote:
>>
>>> On Mon, May 2, 2011 at 9:46 AM, Ruben Diez <rdiez at cesga.es> wrote:
>>> > Hi:
>>> >
>>> > we are have problems with Opennebula and a Xen 4.1.0....
>>> >
>>> > When we attempt to deploy a machine, the oned.log file says:
>>> > [.....]
>>> > Mon May  2 13:01:24 2011 [LCM][I]: New VM state is BOOT
>>> > Mon May  2 13:01:24 2011 [VMM][I]: Generating deployment file:
>>> > /srv/cloud/one/var/1095/deployment.0
>>> > Mon May  2 13:01:26 2011 [VMM][I]: Command execution fail: 'if [ -x
>>> > "/var/tmp/one/vmm/xen/deploy" ]; then /var/tmp/one/vmm/xen/deploy
>>> > /srv/cloud/one/var//1095/images/deployment.0; else
>>> >    exit 42; fi'
>>> > Mon May  2 13:01:26 2011 [VMM][I]: STDERR follows.
>>> > Mon May  2 13:01:26 2011 [VMM][I]: Error: Subcommand sched-cred not
>>> found!
>>> > Mon May  2 13:01:26 2011 [VMM][I]: ExitCode: 1
>>> > Mon May  2 13:01:26 2011 [VMM][E]: Error deploying virtual machine:
>>> Error:
>>> > Subcommand sched-cred not found!
>>> > Mon May  2 13:01:26 2011 [DiM][I]: New VM state is FAILED
>>> > [.....]
>>> >
>>> > The oned version is:
>>> >
>>> > $ oned -v
>>> > Copyright 2002-2011, OpenNebula Project Leads (OpenNebula.org)
>>> >
>>> > OpenNebula 2.1.80 is distributed and licensed for use under the terms
>>> of the
>>> > Apache License, Version 2.0 (
>>> http://www.apache.org/licenses/LICENSE-2.0).
>>> >
>>> > and the physical node have CentOS 5.6 with Xen 4.1.0
>>> >
>>> > The problem seems to be a error in the libvirt configuration:
>>> >
>>> > virsh # version
>>> > Compiled against library: libvir 0.8.2
>>> > Using library: libvir 0.8.2
>>> > Using API: Xen 3.0.1
>>> > Running hypervisor: Xen 4.1.0
>>> >
>>>
>>> You may want to use libvirt 0.9.0 if it is supported by OpenNebula.
>>>
>>> The key feature added is:
>>>
>>> * Add libxenlight driver (Jim Fehlig and Markus Groß)
>>>
>>>
>>> http://article.gmane.org/gmane.comp.emulators.libvirt.user/1229/match=libxenlight
>>>
>>> I'm not familiar enough with the errors that OpenNebula is showing
>>> above, but libvirt support for libxenlight/libxl is the way forward
>>> (xend is deprecated as of 4.1)
>>>
>>> Some further Xen information that may be helpful
>>> http://wiki.xensource.com/xenwiki/Xen4.1
>>> http://wiki.xensource.com/xenwiki/MigrationGuideToXen4.1%2B
>>> http://wiki.xensource.com/xenwiki/HostConfiguration/Networking
>>>
>>> Let Xen.org know if we can be helpful in troubleshooting the
>>> Xen/libvirt side of things.
>>>
>>> Thanks,
>>> Todd
>>>
>>> >
>>> > As you can see, the libvirt is connected to the Xen 4.1.0 hypervisor,
>>> but it
>>> > is using the API of the Xen 3.0.1
>>> >
>>> > Anyone know about how we can change the libvirt API to the  Xen 4.1.0
>>> one??
>>> >
>>> > Regards
>>> >
>>> > _______________________________________________
>>> > Users mailing list
>>> > Users at lists.opennebula.org
>>> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>> >
>>>
>>>
>>>
>>> --
>>> Todd Deshane
>>> http://www.linkedin.com/in/deshantm
>>> http://www.xen.org/products/cloudxen.html
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>
>>
>>
>>
>> --
>> Dr. Ruben Santiago Montero
>> Associate Professor (Profesor Titular), Complutense University of Madrid
>>
>> URL: http://dsa-research.org/doku.php?id=people:ruben
>> Weblog: http://blog.dsa-research.org/?author=7
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>
>>
>
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
>

-- 
Dr. Ruben Santiago Montero
Associate Professor (Profesor Titular), Complutense University of Madrid

URL: http://dsa-research.org/doku.php?id=people:ruben
Weblog: http://blog.dsa-research.org/?author=7
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